Effects of lepidium meyenii (Maca) extract supplementation on oxidative stress, muscle damage, and aerobic capacity after exhaustive endurance exercise

IF 0.6 4区 医学 Q4 ENGINEERING, BIOMEDICAL Isokinetics and Exercise Science Pub Date : 2024-05-01 DOI:10.3233/ies-240006
Ming-Che Liu, Pei-Wei Weng, Yu-Hsiu Chien, Meng-Huang Wu, Wei-Bin Hsu, Sheng-Wei Chen, Ming-Ta Yang
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Abstract

BACKGROUND: Maca extract may regulate oxidative stress and muscle damage after exhaustive endurance exercise (EEE); however, its impact on these physiological activities remains obscure. OBJECTIVE: To examine the effects of Maca extract supplementation on oxidative stress, muscle damage and aerobiccapacity after EEE. METHODS: Twenty healthy men were assigned to Maca or placebo groups and received two doses per day for 12 weeks. Pre- and post-EEE tests assessed levels of oxidative stress and muscle damage. The EEE test also recorded metrics such as time to exhaustion, peak oxygen consumption, and maximal and average heart rates. RESULTS: Post-exercise, there was no significant difference in oxidative stress markers between the Maca and placebo groups. However, the Maca group exhibited lower stress levels at both Post-4 and Post-24 in comparison to Post-0, while the placebo group only displayed a decrease at Post-4. Notably, Maca extract supplementation immediately increased catalase activity at Post-0. Though muscle damage markers did not significantly differ, the slope of CK elevation in the Maca group appeared lower than the Placebo group, suggesting Maca’s potential in preventing muscle damage. However, no differences were noted on aerobic capacity markers. CONCLUSIONS: Maca extract may have some beneficial effects on reducing oxidative stress and possibly muscle damage after EEE.
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补充鳞叶玛卡(玛咖)提取物对氧化应激、肌肉损伤和耐力运动后有氧能力的影响
背景:玛咖提取物可以调节力竭耐力运动(EEE)后的氧化应激和肌肉损伤;然而,它对这些生理活动的影响仍不明显。目的:研究补充玛咖提取物对EEE后氧化应激、肌肉损伤和有氧能力的影响。方法:20 名健康男性被分配到玛咖组或安慰剂组,每天服用两次,连续服用 12 周。EEE前后的测试评估了氧化应激和肌肉损伤的水平。EEE测试还记录了力竭时间、峰值耗氧量、最大心率和平均心率等指标。结果:运动后,玛咖组和安慰剂组的氧化应激指标没有明显差异。然而,玛咖组在运动后 4 小时和运动后 24 小时的应激水平均低于运动后 0 小时,而安慰剂组仅在运动后 4 小时有所下降。值得注意的是,补充玛咖提取物后,过氧化氢酶的活性立即提高。虽然肌肉损伤指标没有明显差异,但玛咖组的肌酸激酶升高斜率似乎低于安慰剂组,这表明玛咖具有防止肌肉损伤的潜力。不过,在有氧能力指标方面没有发现差异。结论:玛咖提取物可能对减少氧化应激和EEE后的肌肉损伤有一定的益处。
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来源期刊
Isokinetics and Exercise Science
Isokinetics and Exercise Science 医学-工程:生物医学
CiteScore
1.20
自引率
14.30%
发文量
37
审稿时长
>12 weeks
期刊介绍: Isokinetics and Exercise Science (IES) is an international journal devoted to the study of theoretical and applied aspects of human muscle performance. Since isokinetic dynamometry constitutes the major tool in this area, the journal takes a particular interest in exploring the considerable potential of this technology. IES publishes studies associated with the methodology of muscle performance especially with respect to the issues of reproducibility and validity of testing, description of normal and pathological mechanical parameters which are derivable from muscle testing, applications in basic research topics such as motor learning paradigms and electromyography. The journal also publishes studies on applications in clinical settings and technical aspects of the various measurement systems employed in human muscle performance research. The journal welcomes submissions in the form of research papers, reviews, case studies and technical reports from professionals in the fields of sports medicine, orthopaedic and neurological rehabilitation and exercise physiology.
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